2 // Class for handling of ESD track cuts.
4 // The class manages a number of track quality cuts, a
5 // track-to-vertex cut and a number of kinematic cuts. Two methods
6 // can be used to figure out if an ESD track survives the cuts:
7 // AcceptTrack which takes a single AliESDtrack as argument and
8 // returns kTRUE/kFALSE or GetAcceptedTracks which takes an AliESD
9 // object and returns an TObjArray (of AliESDtracks) with the tracks
10 // in the ESD that survived the cuts.
14 // - add functionality to save and load cuts
15 // - fix the n sigma cut so it is really a n sigma cut
16 // - add different ways to make track to vertex cut
17 // - add histograms for kinematic cut variables?
18 // - upper and lower cuts for all (non-boolean) cuts
19 // - update print method
20 // - is there a smarter way to manage the cuts?
21 // - put comment to each variable
22 // - implement destructor !!!
28 #ifndef ALIESDTRACKCUTS_H
29 #define ALIESDTRACKCUTS_H
37 #include "AliESDtrack.h"
41 class AliESDtrackCuts : public TObject
46 virtual ~AliESDtrackCuts();
47 AliESDtrackCuts(const AliESDtrackCuts& pd); // Copy Constructor
49 Bool_t AcceptTrack(AliESDtrack* esdTrack);
51 TObjArray* GetAcceptedTracks(AliESD* esd);
53 AliESDtrackCuts &operator=(const AliESDtrackCuts &c);
54 virtual void Copy(TObject &c) const;
56 //######################################################
57 // track quality cut setters
58 void SetMinNClustersTPC(Int_t min=-1) {fCutMinNClusterTPC=min;}
59 void SetMinNClustersITS(Int_t min=-1) {fCutMinNClusterITS=min;}
60 void SetMaxChi2PerClusterTPC(Float_t max=1e99) {fCutMaxChi2PerClusterTPC=max;}
61 void SetMaxChi2PerClusterITS(Float_t max=1e99) {fCutMaxChi2PerClusterITS=max;}
62 void SetRequireTPCRefit(Bool_t b=kFALSE) {fCutRequireTPCRefit=b;}
63 void SetRequireITSRefit(Bool_t b=kFALSE) {fCutRequireITSRefit=b;}
64 void SetAcceptKingDaughters(Bool_t b=kFALSE) {fCutAcceptKinkDaughters=b;}
65 void SetMaxCovDiagonalElements(Float_t c1=1e99, Float_t c2=1e99, Float_t c3=1e99, Float_t c4=1e99, Float_t c5=1e99)
66 {fCutMaxC11=c1; fCutMaxC22=c2; fCutMaxC33=c3; fCutMaxC44=c4; fCutMaxC55=c5;}
68 // track to vertex cut setters
69 void SetMinNsigmaToVertex(Float_t sigma=1e99) {fCutNsigmaToVertex = sigma;}
70 void SetRequireSigmaToVertex(Bool_t b=kTRUE ) {fCutSigmaToVertexRequired = b;}
72 // track kinmatic cut setters
73 void SetPRange(Float_t r1=0, Float_t r2=1e99) {fPMin=r1; fPMax=r2;}
74 void SetPtRange(Float_t r1=0, Float_t r2=1e99) {fPtMin=r1; fPtMax=r2;}
75 void SetPxRange(Float_t r1=-1e99, Float_t r2=1e99) {fPxMin=r1; fPxMax=r2;}
76 void SetPyRange(Float_t r1=-1e99, Float_t r2=1e99) {fPyMin=r1; fPyMax=r2;}
77 void SetPzRange(Float_t r1=-1e99, Float_t r2=1e99) {fPzMin=r1; fPzMax=r2;}
78 void SetEtaRange(Float_t r1=-1e99, Float_t r2=1e99) {fEtaMin=r1; fEtaMax=r2;}
79 void SetRapRange(Float_t r1=-1e99, Float_t r2=1e99) {fRapMin=r1; fRapMax=r2;}
81 //######################################################
82 void SetHistogramsOn(Bool_t b=kFALSE) {fHistogramsOn = b;}
83 void DefineHistograms(Int_t color=1);
84 void SaveHistograms(Char_t* dir="track_selection");
86 virtual void Print(const Option_t* = "") const;
88 // void SaveQualityCuts(Char_t* file)
89 // void LoadQualityCuts(Char_t* file)
92 void Init(); // sets everything to 0
96 //######################################################
97 // esd track quality cuts
98 static const Char_t* fgkCutNames[kNCuts]; // names of cuts (for internal use)
100 Int_t fCutMinNClusterTPC; // min number of tpc clusters
101 Int_t fCutMinNClusterITS; // min number of its clusters
103 Float_t fCutMaxChi2PerClusterTPC; // max tpc fit chi2 per tpc cluster
104 Float_t fCutMaxChi2PerClusterITS; // max its fit chi2 per its cluster
106 Float_t fCutMaxC11; // max cov. matrix diag. elements (res. y^2)
107 Float_t fCutMaxC22; // max cov. matrix diag. elements (res. z^2)
108 Float_t fCutMaxC33; // max cov. matrix diag. elements (res. sin(phi)^2)
109 Float_t fCutMaxC44; // max cov. matrix diag. elements (res. tan(theta_dip)^2)
110 Float_t fCutMaxC55; // max cov. matrix diag. elements (res. 1/pt^2)
112 Bool_t fCutAcceptKinkDaughters; // accepting kink daughters?
113 Bool_t fCutRequireTPCRefit; // require TPC refit
114 Bool_t fCutRequireITSRefit; // require ITS refit
116 // track to vertex cut
117 Float_t fCutNsigmaToVertex; // max number of estimated sigma from track-to-vertex
118 Bool_t fCutSigmaToVertexRequired; // cut track if sigma from track-to-vertex could not be calculated
120 // esd kinematics cuts
121 Float_t fPMin, fPMax; // definition of the range of the P
122 Float_t fPtMin, fPtMax; // definition of the range of the Pt
123 Float_t fPxMin, fPxMax; // definition of the range of the Px
124 Float_t fPyMin, fPyMax; // definition of the range of the Py
125 Float_t fPzMin, fPzMax; // definition of the range of the Pz
126 Float_t fEtaMin, fEtaMax; // definition of the range of the eta
127 Float_t fRapMin, fRapMax; // definition of the range of the y
129 //######################################################
130 // diagnostics histograms
131 Bool_t fHistogramsOn; // histograms on/off
133 TH1F* fhNClustersITS[2]; //[2]
134 TH1F* fhNClustersTPC[2]; //[2]
136 TH1F* fhChi2PerClusterITS[2]; //[2]
137 TH1F* fhChi2PerClusterTPC[2]; //[2]
139 TH1F* fhC11[2]; //[2]
140 TH1F* fhC22[2]; //[2]
141 TH1F* fhC33[2]; //[2]
142 TH1F* fhC44[2]; //[2]
143 TH1F* fhC55[2]; //[2]
145 TH1F* fhDXY[2]; //[2]
147 TH2F* fhDXYvsDZ[2]; //[2]
149 TH1F* fhDXYNormalized[2]; //[2]
150 TH1F* fhDZNormalized[2]; //[2]
151 TH2F* fhDXYvsDZNormalized[2]; //[2]
153 TH1F* fhCutStatistics; // statistics of what cuts the tracks did not survive
154 TH2F* fhCutCorrelation; // 2d statistics plot
156 ClassDef(AliESDtrackCuts,0)